Finfish Breeding and Hatchery Management

Unit 3 - Breeding of major carps

3.6.1.c. Examination of eggs

After the eggs are water-hardened, a sample of eggs is taken in a beaker for assessing quality and quantity.

• The fertilized (good) eggs are transparent with a clearly visible nucleus at the centre and look-like pearls.
• The unfertilized (bad) eggs are opaque white and the nucleus disintegrate within one hour.

Quantitative assessment of eggs Fertilized eggs circulating in a circular hatchery